Cultivation of microalgae and rotifer as live feed for aquatic animal larviculture is generally needed both manpower and skills. Unreliable live feed productivity is one of the most common problems found in the hatchery system. This study involved the development of continuous live feed (microalgae and rotifer) systems for black tiger shrimp larviculture. Continuous culture of the rotifer under the laboratory condition (30 psu salinity, 1,500-2,000 lux light intensity and 25 ํC temperature) was performed by continuously feeding with the microalga Tetraselmis suecia. The results showed that, under continuous culture condition, density of T. suecica was negatively related with the dilution rate. Maximum productivity of 1.1 x 10⁹ cells/L/day was obtained at 0.94/day dilution rate. On the other hand, density of rotifer in continuous culture system had very high fluctuation. However, growth of the rotifer was still in the acceptable density when the dilution rates between 0.4 to 1.7/day were applied. Maximum rotifer productivity was 230,000 individual/day at the dilution rate 0.74/day. Continuous live feed production systems for the black tiger shrimp (Penaeus monodon) larviculture consisted of the continuous production of diatom (Chaeloceros sp.) for larviculture at Zoea stage and the continuous production of rotifer for larviculture at Mysis to Post Larva 1 stages. Comparison between continuous addition of live feed and manual feeding (morning and evening feeding) of live feed from batch cultivation was evaluated in 13 L culture tanks containing 30 psu seawater at room temperature between 29-32 ํC. The results from two trials of shrimp larviculture indicated that, survival rate of shrimp cultured with both continuous and manual feeding was not significant difference. This indicated that continuous diatom and rotifer production system had satisfactory performance. Productivity of diatom and rotifer was reliable so the live feed was ready to be used at anytime. Hence, shrimp larviculture using continuous live feed production system in this study was therefore simple and very convenience for the farmer.